/*

 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "gc/shared/stringdedup/stringDedup.hpp"

#include "gc/shared/stringdedup/stringDedupQueue.hpp"

#include "runtime/atomic.hpp"

StringDedupQueue* StringDedupQueue::_queue = NULL;

volatile size_t   StringDedupQueue::_claimed_index = 0;

size_t StringDedupQueue::claim() {

}

void StringDedupQueue::unlink_or_oops_do(StringDedupUnlinkOrOopsDoClosure* cl) {

  size_t claimed_queue = claim();

  while (claimed_queue < queue()->num_queues()) {

    queue()->unlink_or_oops_do_impl(cl, claimed_queue);

    claimed_queue = claim();

  }

}

void StringDedupQueue::print_statistics() {

  queue()->print_statistics_impl();

}

void StringDedupQueue::verify() {

  queue()->verify_impl();

}

StringDedupQueue* const StringDedupQueue::queue() {

  assert(_queue != NULL, "Not yet initialized");

  return _queue;

}

void StringDedupQueue::gc_prologue() {

  _claimed_index = 0;

}

void StringDedupQueue::gc_epilogue() {

  assert(_claimed_index >= queue()->num_queues() || _claimed_index == 0, "All or nothing");

}